--- makefile--	Mon Oct  7 10:33:20 2002
+++ makefile	Mon Oct  7 10:33:26 2002
@@ -20,8 +20,8 @@
 #
 ########################################################################
 
-CC         = cc
-CFLAGS     = -O
+CC         ?= cc
+CFLAGS     ?= -O
 SRC        = ./src
 
 # For MPI, mpicc will set up the proper include and library paths